Banquisia Paddock, 1988

Holotype species: Banquisia belgicae (Van Heurck) Paddock

Description: Valves laminar, highly vaulted with flattened faces; areolae with longitudinally aligned slit-like foramina arranged into transverse striae. Raphe without fibulae, ridged; raphe ridge in girdle view with a distinct bow-like outline, clearly depressed at the central nodule and ca. two-thirds the distance from either pole. A pair of raphe fins occur at or near the subpolar depressions; these fins are proximate but not opposite on each side of the raphe fissure. Raphe fins are not present at the central nodule although a longitudinal crescentic thickening, accentuation of the median interstriae and the absence of puncta contribute to form a small central area. Large helictoglossae occur internally at each pole; terminal raphe pores large, rounded. Terminal micropyles absent from valve poles. Subantarctic, marine. Recorded from "coloured" ice at ca. 65%S, 64% W and Signy Island, South Orkney (ca. 61% S, 46% W).

Information contributed by: D. B. Czarnecki. The most recent alteration to this page was made on 2005-06-28 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Most recent taxonomic treatment adopted: Hasle, G.R. & Syvertsen, E.E. (1996). Marine diatoms. In: Identifying Marine Phytoplankton. (Tomas, C.R. Eds), pp. 5-385. San Diego: Academic Press.

Comments: Scott & Thomas (2005: 148) record this genus as a member of the Family Naviculaceae.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=45167

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 28 June 2005. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024